Summary: The sad thing is, the SW could easily be fixed. Make it so you can run a script BEFORE the shutdown sequence is inevitable (you can delay it, not stop it). Also, is it really that hard to have an English speaking tech editor go through the documentation? The nuances of the English language matter when you are trying to configure it.
Pros: The plan was to provide UPS for a little home Linux movie server. It does the job well. My 57 watt draw means 45 minutes of power. The USB interface worked well and the PowerPanel SW worked first time. But trying to configure it...
Cons: So, lets talk about configuring the SW. As, I mentioned I run a Linux machine, which makes me the red headed stepchild of the SW support spectrum. But, hey, you could at least have an English speaker proof read the instructions. It took me two hours of tinkering with the auto emailer to make it work. Then I figured out if it sends an alert, it WILL shut down your system; even if power is restored. The Nigerian Prince writing style for the manual and code comments did ...
Excerpt: I bought 2 older versions of this unit five years ago. Both have worked flawlessly during that time, until a couple weeks ago when one of them must have developed an internal short. One side quit providing power. So, I immediately went to B&H and ordered a new one. It was delivered quickly and was simple to set in place of the old one. My computer equipment is expensive and very important to me as a photographer. I wouldn't be without these units.
Excerpt: This was purchased as a replacement. This is same as the @ Atvia branded unit which I owned and lasted for 6 years before it died. This unit so far has operated as reliable as my other united. I've also owned APC brand.
Excerpt: Price is about the only "Con" I can think of. But then again this is not a regular surge protector ! This unit has 8 A/C plug-ins, 4 of them say just Surge, the other 4 say Surge/Battery Back-up. Depending on what your protecting, you have up to 45 min. of battery power. This's for my wife's computer and she has a very nice computer set-up and we just had a good size storm come thru and fried the old surge protector. This one is much better than the one it is replacing.
Pros: Easy To Install, Highly Compatible, Quiet, Reliable
Summary: The UPS's we had here in the office were either Tripp-Lite or APC. Some of these were beeping for no reason, despite them being less than a year old. When replacing them with new Tripp-Lite units (also 550VA), they would kill power to workstations too often to be just a fluke unit or two. I will not buy Tripp-Lite battery products again.
Summary: We have had four power outages in the past two years and I also have conducted tests every couple of months. In every case the Cyberpower has communicated perfectly, told the server to execute a normal shutdown, and had more than enough power and as a result, in every case, has executed a controlled and safe shutdown.
Pros: Universal compatibility with every Win OS Small Footprint. Greener than larger units (less power draw by the unit itself during normal operation)good price.